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authorKevin Wolf <kwolf@redhat.com>2010-04-13 11:43:27 +0200
committerKevin Wolf <kwolf@redhat.com>2010-05-28 13:14:25 +0200
commit1b7c801b40ce90795397bb566d019c9b76ef9c13 (patch)
tree4efd1aaa1638c5be722281ee3d56a12df76bd56b /block
parent29f91781bd300b228d9c38b9f6c1e0b6a38f25fb (diff)
qcow2: Clear L2 table cache after write error
If the L2 table was already updated in cache, but writing it to disk has failed, we must not continue using the changed version in the cache to stay consistent with what's on the disk. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/qcow2-cluster.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index c11680d12a..ed5c4b2a67 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -696,6 +696,7 @@ int qcow2_alloc_cluster_link_l2(BlockDriverState *bs, QCowL2Meta *m)
ret = write_l2_entries(bs, l2_table, l2_offset, l2_index, m->nb_clusters);
if (ret < 0) {
+ qcow2_l2_cache_reset(bs);
goto err;
}